PMID: 9523812Apr 2, 1998Paper

Perioperative risk of bradyarrhythmias in patients with asymptomatic chronic bifascicular block or left bundle branch block: does an additional first-degree atrioventricular block make any difference?

Anesthesiology
A GaussW Schütz

Abstract

The incidence of perioperative bradyarrhythmias in patients with bifascicular or left bundle branch block (LBBB) and the influence of an additional first-degree atrioventricular (A-V) block has not been evaluated with 24-h Holter electrocardiographic monitoring. Therefore the authors assessed the rate of block progression and bradyarrhythmia in these patients. Patients (n = 106) with asymptomatic bifascicular block or LBBB with or without an additional first-degree A-V block scheduled for surgery under general or regional anesthesia were enrolled prospectively. Three patients were excluded. Of the 103 remaining, 56 had a normal P-R interval and 47 had a prolonged one. Holter monitoring (CM2, CM5) was applied to each patient just before induction of anesthesia and was performed for 24 h. The primary endpoint of the study was the occurrence of block progression. As secondary endpoints, bradycardias < 40 beats/min with hemodynamic compromise (systolic blood pressure < 90 mmHg) or asystoles > 5 s were defined. Block progression to second-degree A-V block and consecutive cardiac arrest occurred in one case of LBBB without a prolonged P-R interval Severe bradyarrhythmias with hypotension developed in another eight patients: asystoles...Continue Reading

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Citations

Nov 5, 2004·Hospital Medicine·S O'Malley, E M C Ashley
Feb 29, 2008·Journal of Anesthesia·Yoshiharu SatoToshiaki Nishikawa
Feb 28, 2009·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Steven T Morozowich, Stuart B Saslow
Feb 20, 2018·JA Clinical Reports·Marie Shigematsu-LocatelliMasataka Yokoyama
Apr 21, 1999·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·K MamiyaM Manabe
Sep 22, 2001·The Medical Clinics of North America·S B Sloan, H H Weitz

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